I don't think any more trims will be added actually woo! But...this might not exactly translate into more speed down the drop. My theory for why there are less trims on Green Lantern has to do with the small incline just before drop. I'm going to borrow Gazza's pic from a couple pages ago to explain this one:
If you look closely at the turn around section after the lift hill, Green Lantern has a small incline/hill after the turn around leading into the drop. However, Steel Hawg has just a straight peice of track; no elevation change. So on SH more trims are needed to reduce the speed, to keep the forces intact (hopefully that makes sense). But with GL i'm guessing S&S's design intent is to slow the car right down just before the drop....to give it a 'Shiekra hanging sensation'. So the car will reduce it's speed because of the incline, hit the trims, crawl through them......and then drop. Yes there won't be trims down the drop, but you'll probably be going at the same velocity as SH because of that small hill; keeping the forces at a safe level. It'll feel different though as the car will be accelerating down the whole way...unlike SH which is a controlled descent. I much prefer our altered version as their won't be any brakes, all free-fall